How To Check A Roof Pitch

Let s say it is equal to 1 5 m.

How to check a roof pitch.

To do this simply convert the rise and run as a fraction to a decimal form eg. How to determine or calculate roof pitch or roof slope 1. First measure 12 inches from one end of the level and make a mark. Pitch rise run 1 5 6 25.

Measure the rise of your roof. The underside of a barge rafter on a gable end. How to determine your roof pitch the easy way step 1. Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level.

If you need to find the pitch of an existing roof all you need is a level and a tape measure. For a simple gable roof the span wall to wall will be twice the size of the run wall to ridge horizontally. Some levels have markings already and in this case you are ready. The underside of a rafter in the attic.

How to measure roof pitch to measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil. Working from the interior side of the roof you ll need access to a roof rafter to measure the pitch. The slope is the same as the pitch. The underside of a rafter on a overhang at the bottom of the roof 3.

Place the level horizontally along the rafter until it contacts the roof sheathing avoiding any protruding roof nails. You can assess this in two ways either as the roof pitch angles which the rafters make with the horizontal or the proportion between the run and the rise of the roof. Roof pitch refers to the slope which the rafter creates. Rise run rise run slope.

First convert the pitch to a slope. Climb on the roof and measure. To find the angle of a roof in degrees convert the pitch to a slope then convert to degrees by finding the arc tangent of the slope. Often you express roof pitch as the ratio between the rise and the run in the form of x 12.

Calculate the roof pitch as the proportion of rise and run. For a roof with the ridge above one wall the span is the same as the run. Rafter rise run 1 5 6 2 25 36 38 25rafter 38 25 6 18 m.